
June 2021
Service and Repair Manual
Manifolds
Part No. 1285307GT
S
®
-80 J, S
®
-80 J TraX
™
71
7-11
Valve Coils
How to Test a Coil
A properly functioning coil provides an
electromagnetic force which operates the solenoid
valve. Critical to normal operation is continuity
within the coil. Zero resistance or infinite
resistance indicates the coil has failed.
Since coil resistance is sensitive to temperature,
resistance values outside specification can
produce erratic operation. When coil resistance
decreases below specification, amperage
increases. As resistance rises above specification,
voltage increases.
While valves may operate when coil resistance is
outside specification, maintaining coils within
specification will help ensure proper valve function
over a wide range of operating temperatures.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Note: If the machine has been in operation, allow
the coil to cool at least 3 hours before performing
this test.
1 Tag and disconnect the wiring from the coil to
be tested.
2 Test the coil resistance using a multimeter set
to resistance (W). Refer to the Valve Coil
Resistance Specification table.
Result: If the resistance is not within the
adjusted specification, plus or minus 10%,
replace the coil.
Valve Coil Resistance
Specification
Note: The following coil resistance specifications
are at an ambient temperature of 68°F / 20°C. As
valve coil resistance is sensitive to changes in air
temperature, the coil resistance will typically
increase or decrease by 4% for each 18°F / 10°C
that your air temperature increases or decreases
from 68°F / 20°C.
Description
Specification
Solenoid Valve, 10V DC (schematic items BE
and BF)
5.5 to 7.5
Ω
Solenoid Valve, 10V DC (schematic item GB) 4 to 6
Ω
Solenoid Valve, 10V DC (schematic item FF)
5 to 7
Ω
Proportional solenoid valve, 12V DC
(schematic items AD, AK)
4.4
Ω
Proportional solenoid valve, 12V DC
(schematic item AAA)
3.7
Ω
Proportional solenoid valve, 12V DC
(schematic item AM)
7.2
Ω
Solenoid Valve, 10V DC (schematic items
AC, AE, AF, AI and AL)
4
Ω
Solenoid Valve, 10V DC (schematic items
AA, AP and AW)
5
Ω
Содержание Genie S-80 J
Страница 67: ...June 2021 Service and Repair Manual Part No 1285307GT S 80 J S 80 J TraX 55 This page intentionally left blank ...
Страница 69: ...June 2021 Service and Repair Manual Manifolds Part No 1285307GT S 80 J S 80 J TraX 57 ...
Страница 71: ...June 2021 Service and Repair Manual Manifolds Part No 1285307GT S 80 J S 80 J TraX 59 ...
Страница 78: ...Service and Repair Manual June 2021 Manifolds 66 S 80 J S 80 J TraX Part No 1285307GT ...
Страница 121: ...June 2021 Service and Repair Manual 109 Electrical Schematic Generator Options ...
Страница 123: ...June 2021 Service and Repair Manual Part No 1285307GT S 80 J S 80 J TraX 111 Electrical Schematic Positive Air Shutdown ...
Страница 124: ...Service and Repair Manual June 2021 112 Electrical Schematic Positive Air Shutdown ...
Страница 125: ...June 2021 Service and Repair Manual 113 Electrical Schematic Turntable Controller ...
Страница 128: ...Service and Repair Manual June 2021 116 Electrical Schematic Platform Controller ...
Страница 129: ...June 2021 Service and Repair Manual 117 Electrical Schematic Kubota D1803 ...
Страница 132: ...Service and Repair Manual June 2021 120 Electrical Schematic Deutz D2011 ...
Страница 133: ...June 2021 Service and Repair Manual 121 Hydraulic Schematic ...
Страница 135: ......